Veris Industries CWE2 Wall Sensor

The Veris Industries CWE2 Wall Sensor is a high-precision 0-2000 ppm CO2 sensor engineered for commercial building automation systems (BAS) and demand-controlled ventilation (DCV) projects. As the direct replacement for the legacy CWE model, this unit features advanced dual-beam NDIR technology to ensure long-term stability and eliminate the need for manual calibration in standard environments. It provides field-selectable analog output CO2 sensor signals, including 4-20mA, 0-5V, or 0-10V, allowing for seamless integration with a wide variety of controllers. Designed with a sleek, matte white ABS enclosure, it functions within a 0-50°C operating range and delivers a fast response time of ?75 seconds for 90% step changes. This 2-wire CO2 wall sensor minimizes installation labor with large screw terminals and a low 20mA operating current, making it a reliable solution for maintaining indoor air quality and optimizing energy efficiency in schools, offices, and healthcare facilities.

Key Benefits for HVAC Contractors

• Dual-Beam NDIR Sensor: Specifically designed to reduce sensor drift and maintain accuracy of ±30 ppm even in 24/7 occupied spaces.
• Direct Replacement: Simplifies retrofits by serving as the updated substitute for the discontinued Veris CWE series.
• Flexible BAS Integration: Field-selectable current/voltage outputs ensure compatibility with almost any building automation system input.
• High Resolution Monitoring: Offers 1 ppm resolution and ±2% RH accuracy for comprehensive indoor climate tracking.
• Cost-Effective Installation: Low operating current and simplified 2-wire or 3-wire wiring configurations reduce material costs.

Common Questions

Is the CWE2 suitable for spaces occupied 24 hours a day?
Yes. Because it utilizes dual-beam CO2 sensor technology, it does not rely on Automatic Background Calibration (ABC) logic, allowing it to maintain accuracy in hospitals or data centers where CO2 levels never reach outdoor baseline levels.

Does this unit require frequent recalibration?
The self-calibrating CO2 sensor design is built for stability, significantly extending the typical maintenance intervals compared to single-beam sensors.

What wiring is required for the CWE2?
It accommodates 18-24 AWG wiring. For 4-20mA output, it operates on a standard 2-wire loop-powered configuration, while voltage outputs require a 3-wire setup.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.